Willie:
I met you very briefly at Applebrook GC last fall... thanks again for coming out and seeing us that day! I was with Messrs. Paul, Cirba and Goodale among others.... Hello and great to see you posting here!
Perhaps I can answer part of your question. I am indeed a course rater for our Northern California Golf Association, and although I am a rookie this year, I am starting to "get" the quite complex manner in which course ratings and slopes are determined.
Note that green "surface" is indeed one of the criteria we judge in rating a course... The basic starting point is the stimpmeter-produced speed - that puts us into one of several categories. After that, we judge how sloped a green is, and those are the 2nd category... Put this on a table and you arrive at a number from 1-10, with a very high stimp and a lot of slope reaching the 10 figure. I recently did a relatively new course where every green was 9 or 10... That is going to have a big effect on the course rating and slope - making it higher than a course with flatter, slower greens most definitely.
So yes, green speed and contour is considered, and the way they are building courses today, it does make a big difference.
Another issue however, is that at classic courses like Pasatiempo or Crystal Downs... those are gonna be 9-10 greens also - the wild contours matched with today's lightning speed just requires it!
Maybe this helps, maybe not. It continues to amaze me how complex the whole rating process is.
TH